ÿþ<html xmlns:fb="http://ogp.me/ns/fb#"> <head> <meta name="description" content="Keemiavideod õppimiseks ja lihtsalt nautimiseks."> <meta name="keywords" content="Chemicum, keemikum, keemia, katse, keemiavideod, 100 katset keemias, keemiakatsed, mittemetallid, hapnik, vesinik, süsinik, lämmastik, kloor, süsinikdioksiid, süsihappegaas, ammoniaak, põlemine, redutseerumine, oksüdeerumine, pH, tasakaal, reaktsiooni kiirus, segude lahutamine, reaktsioonitunnused, orgaanilised ained, elektrokeemia, leekreaktsioonid "> <meta http-equiv="Content-Type" content="text/html; charset=windows-1257"> <meta property="og:title" content="&quot;100+ katset keemias&quot;" /> <meta property="og:type" content="website" /> <meta property="og:url" content="http://www.chemicum.com/ava.htm" /> <meta property="og:image" content="http://www.chemicum.com/img/0.jpg" /> <meta property="og:site_name" content="Chemicumi videod" /> <meta property="fb:admins" content="100003026740515" /> <title>100+ katset keemias</title> </head> <body> <div id="fb-root"></div> <script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) {return;} js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/all.js#xfbml=1"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));</script> <p align="center" style="margin-top: 12; margin-bottom: 12"><span lang="et"> <b> <font face="Arial" color="#000066"> <a href="http://www.chemicum.com/?meny=Mittemetallid&lan=EE"><font color="#000066">MITTEMETALLID</font></a>: <a href="http://www.chemicum.com/?meny=Katsed_hapnikuga&lan=EE"> <font color="#000066">O2</font></a><font face="Arial">, </font> <a href="http://www.chemicum.com/?meny=Katsed_vesinikuga&lan=EE"> <font color="#000066">H2</font></a><font face="Arial">, </font> <a href="http://www.chemicum.com/?meny=katseid_N2ga&lan=EE"> <font color="#000066">N2</font></a><font face="Arial"> ja </font><a href="http://www.chemicum.com/?meny=Katsed_klooriga&lan=EE"> <font color="#000066">Cl2</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=katseid_CO2ga&lan=EE"> <font color="#000066">CO2</font></a> <font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Metallid&lan=EE"><font color="#000066">Metallid</font></a><font face="Arial">: </font> <a href="http://www.chemicum.com/?meny=s-metallid&lan=EE"><font color="#000066">s-metallid</font></a><font face="Arial">, </font> <a href="http://www.chemicum.com/?meny=p,d-metallid&lan=EE"><font color="#000066">p,d-metallid</font></a><font face="Arial"> ja </font> <a href="http://www.chemicum.com/?meny=Leekreaktsioonid&lan=EE"> <font color="#000066">leekreaktsioonid</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Reaktsioonitunnused&lan=EE"> <font color="#000066">Reaktsioonitunnused</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Segude_lahutamine&lan=EE"> <font color="#000066">Segude lahutamine</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Reaktsiooni_kiirus,_tasakaal&lan=EE"> <font color="#000066">Reaktsiooni kiirus, tasakaal</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Lahused,_pH&lan=EE"> <font color="#000066">Lahused, pH</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Katseid_orgaaniliste_ainetega&lan=EE"> <font color="#000066">Katseid orgaaniliste ainetega</font></a><font face="Arial"> | </font><a href="http://www.chemicum.com/elektrokeemia"> <font color="#000066">ELEKTROKEEMIA</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Varia&lan=EE"> <font color="#000066">Varia</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Tegijad_ja_toetajad&lan=EE"> <font color="#000066">Tegijad ja toetajad</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/?meny=Tutvustus&lan=EE"> <font color="#000066">Tutvustus</font></a><font face="Arial"> | </font> <a href="http://chemicum.com/keemikudtegutsevad/index.html"> <font color="#000066">Keemikud tegutsevad</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/chemistry-videos"> <font color="#83B52F">English</font></a><font face="Arial"> | </font> <a href="http://www.chemicum.com/ru"> <font color="#83B52F"> CAA:89</font></a><font face="Arial"> | </font> </b></span></p> <p align="center" style="margin-top: 12; margin-bottom: 12"> <font size="6" color="#009933">Keemiavideod - chemicum.com</font></p> <p align="center" style="margin-top: 12; margin-bottom: 12">Et keemiatunnid huvitavamaks muuta on tehtud <a href="http://www.chemicum.com/111katset.html">111</a> ja veel mõned videod keemiakatsetest. Videosid on vaadatud üle 100208 korra. Tegijateks teadurid ja õppejõud Tartu Ülikooli Chemicumist. &quot;<b>100+ katset keemias</b>&quot; asub nüüd veebilehel www.chemicum.com. Lisaks koolikeemia programmile on selgitatud hulga põnevaid keemianähtuseid: Pommirühma abiga valmis video - <a href="http://www.chemicum.com/?video=102&lan=EE">tseesiumi reaktsioon veega</a>. Kuidas tekib külm valgus ehk <a href="http://www.chemicum.com/?video=93&lan=EE"> kemoluminestsents</a>. Väga veider reaktsioon - <a href="http://www.chemicum.com/?video=65&lan=EE">Vaarao madu</a>. <a href="http://www.chemicum.com/?video=91&lan=EE">Nitrotselluloos</a> plahvatab ja paneb vormeli mudeli liikuma. Miks <a href="http://www.chemicum.com/?video=110&lan=EE">pürofoorne raud</a>, <a href="http://www.chemicum.com/?video=106&lan=EE">silaan</a> ja <a href="http://www.chemicum.com/?video=7&lan=EE">valge fosfor</a> süttivad õhus iseenesest? Natuke nõidust ka - <a href="http://www.chemicum.com/?video=107&lan=EE">keemiline kell</a> ja <a href="http://www.chemicum.com/?video=86&lan=EE">nõiduslikud värvimuutused</a>. Mis teeb ilutulestiku värviliseks (<a href="http://www.chemicum.com/?video=92&lan=EE"><font color="#00FF00">roheline</font></a>, <a href="http://www.chemicum.com/?video=92&lan=EE"><font color="#FF0000">punane</font></a>, <a href="http://www.chemicum.com/?video=51&lan=EE"><font color="#FFFF00">kollane</font></a>)? Aegsütiku abil saab põlevaid segusid ohutult süüdata, näiteks <a href="http://www.chemicum.com/?video=43&lan=EE">aluminotermia segu</a> või <a href="http://www.chemicum.com/?video=104&lan=EE">vulkaani</a>. Valmistame <a href="http://www.chemicum.com/?video=26&lan=EE">värvimuutva lillekese</a> ja <a href="http://www.chemicum.com/?video=109&lan=EE">keemilise vetika</a>. Mõned lõbusad videod on üleval ka <a href="http://youtube.com/chemicum">chemicumi kanalil Youtube's</a>, näiteks <a href="http://youtu.be/On2jbcMXhtY">"Plahvatused aegluubis"</a>. </p> <p align="center" style="margin-top: 12; margin-bottom: 12">Uus <a href="http://www.chemicum.com/elektrokeemia">elektrokeemia</a> lehekülg: <a href="http://www.chemicum.com/?v=Electrosynthesis_of_sodium.flv&lan=EE">"Naatriumi valmistamine elektrolüüsil"</a>, <a href="http://www.chemicum.com/?v=What_is_inside_a_Li-ion_battery.flv&lan=EE">"Millest koosneb Li-ioon aku?"</a> ja <a href="http://www.chemicum.com/?v=Homemade_aluminium-air_battery.flv&lan=EE">"Alumiinium-õhk patarei valmistamine"</a>. Mismoodi töötavad <a href="http://www.chemicum.com/?video=95&lan=EE">patareid</a>, <a href="http://www.chemicum.com/?video=96&lan=EE">kütuseelemendid</a> ja <a href="http://www.chemicum.com/?vid=99&lan=EE">superkondensaatorid</a>, kuidas neid ise valmistada?</p> <p align="center" style="margin-top: 12; margin-bottom: 12">Tudengipäevad Tartus panevad ka <a href="http://chemicum.com/keemikudtegutsevad/index.html">keemikud tegutsema</a> .</p> <p align="center" style="margin-top: 12; margin-bottom: 12"> <a style="cursor:pointer" onclick="window.open('http://www.chemicum.com/?&lan=EE','mywindow','width=860,height=642')"><img width="241",height="180", src="http://www.chemicum.com/img/0.jpg"/></a> <a style="cursor:pointer" onclick="window.open('http://www.chemicum.com/?meny=Tegijad_ja_toetajad&lan=EE','mywindow','width=860,height=642')"><img width="241",height="180", src="http://www.chemicum.com/img/tunnustatud_m2rk_v2rviline.jpg"/></a> <a style="cursor:pointer" 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src="http://www.chemicum.com/img/105.jpg"/></a> <a style="cursor:pointer" onclick="window.open('http://www.chemicum.com/?video=104&lan=EE','mywindow','width=860,height=642')"><img width="241",height="180", src="http://www.chemicum.com/img/104.jpg"/></a> <a style="cursor:pointer" onclick="window.open('http://www.chemicum.com/?video=103&lan=EE','mywindow','width=860,height=642')"><img width="241",height="180", src="http://www.chemicum.com/img/103.jpg"/></a> <a style="cursor:pointer" onclick="window.open('http://www.chemicum.com/?video=102&lan=EE','mywindow','width=860,height=642')"><img width="241",height="180", src="http://www.chemicum.com/img/102.jpg"/></a> <a style="cursor:pointer" onclick="window.open('http://www.chemicum.com/?video=101&lan=EE','mywindow','width=860,height=642')"><img width="241",height="180", src="http://www.chemicum.com/img/101.jpg"/></a> <a style="cursor:pointer" 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